Multilayer antenna arrangement

Abstract

A multilayer antenna arrangement is distinguished in particular by the following features: a further patch antenna (B) comprising a dielectric carrier and a radiation plane is provided above the base portion or central portion of the patch arrangement, the radiation plane being provided on the upper side, opposite the base portion or central portion, of the dielectric carrier, and the further patch antenna (B) is buried at least in part in the parasitic patch arrangement, which is configured so as to be box-shaped or box-like, and/or the parasitic patch arrangement which is configured so as to be box-shaped or box-like is formed, completely or in part, as electrically conductive planes, which are provided on the further patch antenna (B) at least in partial regions on the circumferential edge surface or outer surface thereof.

1. Multilayer antenna of a planar construction, comprising:
 a first patch antenna with a plurality of planes and/or layers which are arranged along an axial axis with or without a lateral offset from one another, comprising:
 a first electrically conductive ground plane, 
 a first conductive radiation plane arranged so as to lie offset transverse to the first ground plane and extended parallel thereto, 
 a first dielectric carrier arranged between the first ground plane and the first radiation plane at least for a partial height and/or a partial region, wherein the first radiation plane is electrically connected to an electrically conductive feeder, 
 a first carrier provided directly or indirectly on the opposite side of the first radiation plane from the first ground plane, 
 
 an electrically conductive parasitic patch arrangement, provided on the opposite side of the first carrier from the first radiation plane, wherein the first carrier has a thickness or height smaller than a thickness or height of the parasitic patch arrangement, wherein the parasitic patch arrangement is configured so as to be box-shaped or box-like and/or comprises, at least in regions, circumferential raised portions, rim portions, web portions or wall portions, which extend so as to proceed transversely from a base portion or central portion of the parasitic patch arrangement, specifically away from the first radiation plane, and 
 a second patch antenna comprising a second dielectric carrier and a second radiation plane provided above the base portion or central portion of the parasitic patch arrangement, the second radiation plane being provided on the upper side, opposite the base portion or central portion of the second dielectric carrier, and 
 the second patch antenna buried at least in part in the parasitic patch arrangement, is formed, completely or in part, as electrically conductive planes, which are provided on the second patch antenna at least in partial regions on the circumferential edge surface or outer surface thereof. 
 
     
     
       2. The antenna according to  claim 1 , wherein the parasitic patch arrangement comprises raised portions, rims and/or webs, which extend transversely away from the base portion or central portion and the height of which is greater than or equal to the height of the second patch antenna. 
     
     
       3. The antenna according to  claim 1 , wherein the parasitic patch arrangement comprises raised portions, rims, webs and/or walls and/or electrically conductive planes, which extend transversely away from the base portion or central portion and the height of which is less than or equal to the height of the second patch antenna. 
     
     
       4. The antenna according to  claim 1 , wherein a second ground plane is formed on the lower side of the second dielectric carrier of the second patch antenna. 
     
     
       5. The antenna according to  claim 4 , wherein a second carrier of a non-conductive material, in the form of a double-sided adhesive layer, is provided between the second ground plane and the base portion or central portion of the parasitic patch arrangement. 
     
     
       6. The antenna according to  claim 1 , wherein the lower side of the second dielectric carrier is arranged directly on the upper side of the base portion or central portion of the parasitic patch arrangement. 
     
     
       7. The antenna according to  claim 1 , wherein the longitudinal and/or transverse extent of the second patch antenna parallel to the base portion or central portion of the parasitic patch arrangement has a smaller dimension than the clear internal dimension in the longitudinal and transverse direction between the raised portions, rims, webs and/or electrically conductive planes of the parasitic patch arrangement. 
     
     
       8. The antenna according to  claim 1 , wherein the base portion or central portion of the parasitic patch arrangement is provided as an electrically conductive layer or metal coating directly on the lower side of the second dielectric carrier of the second patch antenna. 
     
     
       9. The antenna according to  claim 1 , wherein the raised portions, rims, webs and/or walls of the parasitic patch arrangement are formed as electrically conductive planes or metal coatings on the outer surfaces on the second dielectric carrier of the second patch antenna. 
     
     
       10. The antenna according to  claim 9 , wherein the electrically conductive layers or metal coatings which are formed on the outer circumferential surfaces of the second dielectric carrier extend to a partial height or to the full height thereof. 
     
     
       11. The antenna according to  claim 9 , wherein the electrically conductive planes or metal coatings which are formed on the outer circumferential surfaces of the second dielectric carrier are galvanically separated from the electrically conductive layers or metal coatings which are formed on the lower side of the second dielectric carrier. 
     
     
       12. The antenna according to  claim 1 , wherein electrically conductive layers or metal coatings are provided on the upper side of the second dielectric carrier so as to be separated from the radiation plane provided on the upper side, and are galvanically connected to the electrically conductive planes or metal coatings which are formed on the outer walls of the second dielectric carrier. 
     
     
       13. The antenna according to  claim 1 , wherein the radiation plane of the first patch antenna, the radiation plane of the second patch antenna, and/or the second dielectric carrier of the second patch antenna have mutually opposed flat portions. 
     
     
       14. The antenna according to  claim 1 , wherein when viewed from the side, parallel to the first ground plane, the metal coating, which is formed at least on partial regions of the circumferential edge surfaces or outer surfaces of the second patch antenna, overlaps the edges or rims, extending out from the first ground plane, of the box-shaped or box-like parasitic patch arrangement. 
     
     
       15. The antenna according to  claim 1 , wherein the box-shaped or box-like parasitic patch arrangement is provided with a recess in one or in at least two opposite corner regions the corners of the second patch antenna protruding freely in the opposite corner regions.